世衛

世 = 廿 + L : Mnemonic symbol: the WTO or WHO.

Sherlock Holmes (sh) is cleaning a flower pot (廿) under the shower of the space station's bathroom (Ø4) with a loofah (L) because he didn't quite understand a poster next to the shower from the WHO (世) explaining dangers arising from different germs.

In this case, L is for loofah.

卫

衛

wèi = w + ei4

surname Wei / vassal state during the Zhou Dynasty (1066-221 BC), located in present day Henan and Hebei Provinces

卫 = 工 + 亅 : A steel beam came loose in the Eiffel Tower's bathroom. Willy Walrus guards the scene with a crowbar against gazers until the construction team to repair it arrives.

卫

衛

wèi = w + ei4

to guard / to protect / to defend / abbr. for 衛生|卫生, hygiene / health / abbr. for 衛生間|卫生间, toilet

卫 = 工 + 亅 : A steel beam came loose in the Eiffel Tower's bathroom. Willy Walrus guards the scene with a crowbar against gazers until the construction team to repair it arrives.